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Your prototype works on the bench. The first time a real customer plugs it in, it falls over — Wi-Fi setup fails, the firmware locks up after a week, the battery dies in three days instead of three months. That's the gap I close. I'm an embedded systems and IoT engineer. I take connected devices from "it works for me" to "it ships to customers and survives in the field." Most of my work falls into three areas: Embedded firmware on ESP32, STM32, nRF52, RP2040, AVR, and Raspberry Pi. C/C++ and Python. FreeRTOS and bare-metal. Low-power design when battery life matters — pushing sleep currents into single-digit µA, debugging the wake-up paths, tracking down the rogue peripheral that's keeping your device awake. Connectivity across BLE, Wi-Fi, MQTT, LoRa, LTE-M, NB-IoT, CAN, RS-485. Consumer IoT and headless devices. Captive-portal Wi-Fi onboarding so a non-technical customer can set up the device from their phone. Systemd watchdog services that recover from network drops automatically. OTA update infrastructure for fleet deployment. SD card write minimization on Linux-based devices, because the field failure mode no one warns you about is filesystem corruption six months in. PCB design when the project needs it. 2 to 8 layer boards in KiCad and Eagle, IPC-2221/7351 compliant. DFM and DFT review baked in from the schematic stage. Signal integrity, RF layout, and the kind of board-level decisions that affect yield, cost, and certification much more than firmware ever will. A few things worth knowing about how I work: I'm honest about scope. If your project doesn't need a custom PCB, cloud infrastructure, or edge ML, I'll tell you. I'd rather build the right thing for your actual budget than oversell. I think about the device's whole life, not just the demo. SD card longevity, Wi-Fi recovery, what happens when your customer's router changes, what happens when the firmware bug shows up in month six. The failure modes that matter are rarely the ones that show up on day one. I document for the human who comes after me. The setup guides and handoff docs I write are aimed at a non-technical reader — your future self, your in-house team, or whoever takes ownership when the contract closes. If you're building a connected device and the path from working prototype to shipping product isn't obvious yet, send me a message with what you're working on. I'll tell you honestly whether I can help.

Sr. Principal Embedded Software Engineer with 12+ years of experience, Extensive record of Architect, Developing, testing and Leading Embedded Systems Activities. Main experience includes Embedded C, Building Firmware, Device Drivers, low-level programming, Xilinx SoC Architecture, participate in ADAS ECU development. Reading datasheets, Hardware schematic analysis, and debugging with HW design team. Experience in handling large teams, and I can work independently as well. Relevant experience (Development): - Programming Skills: C/C++, Embedded C, Assembly, Python. - HW Platforms : Renesas RH850, Zynq ultrascale+, FPGA, ARM Cortex M3/4, Atmel, PIC, STM32, TI MSP430, ESP32 - Protocols/Peripherals : SPI, I2C, CAN, LIN, Ethernet Lightweight TCP/IP, UART, PWM, ADC, DAC. - Tools/IDEs : WinIDEA, Eclipse IDE, Xilinx ISE/SDK, MPLAB X, STM32CubeIDE, Code Composer Studio, VS Code, CANoe. - Hardware Packages : iSystem Debugger, CAN Case, Logic Analyzer, SPI Tracer, Oscilloscope. - Configuration & Requirement Mgt. : Core ALM, Gerrit, Git, Tortoise SVN, Serena Dimensions, DOORs, Bugzilla Proven experience as a QA Engineer, Systems analyst/tester and I have in-depth knowledge in various domains. Relevant experience (Testing): * ISTQB® Foundation Level Certified Tester * Develop test plans, Preparing and executing test cases, Bug reporting, User experience, Perform result analysis * Perform different kind of testing (functional, localization, exploratory smoke, sanity, regression, user-interface, end-to-end, .. etc) for Web, Desktop, and Mobile applications * Browser logs (Desktop/Mobile) - Mobile devices logs (Android/IOS) * Web debugging proxy for desktop and mobile (Charles proxy & Fiddler) * API testing * Tools: (Jira / Trello)

Top-Rated Embedded Engineer, 40+ projects shipped. I build STM32/ESP32 firmware, PCB designs, and custom PySide6/Qt desktop tools that turn hardware concepts into products. Most hardware projects stall in the gap between the silicon and the software that has to drive it. That's exactly where I work, I take a project from schematic and PCB layout, through low-level firmware, all the way to the desktop application your team uses to configure, test, and visualize the system. What I build: • Firmware & embedded C/C++ - STM32 and ESP32 development, from bare-metal drivers to production firmware, with hardware bring-up and debugging. • Hardware & PCB - DFM-ready schematic capture and PCB layout in Altium and KiCAD, designed alongside the firmware so the two actually fit. • Desktop tools & GUIs - Native PySide6 / PyQt / C++ applications purpose-built for hardware interfacing, instrument control, data visualization, and automated test. • Automation & reliability - Self-hosted n8n pipelines with custom Python/JavaScript, plus CI/CD, Git, and automated unit testing across C and Python codebases. Because I own both sides - the hardware and the software that controls it, you don't have to coordinate two contractors who blame each other when something doesn't talk. You get one engineer accountable for a working, production-ready system. If you've got an embedded product, a test rig, or a hardware-control tool that needs building, send me the details and I'll tell you straight whether it's a fit and how I'd approach it.

A versatile Embedded Systems & IoT Expert I bring a unique blend of expertise in Embedded systems, PCB High Speed designs and IoT app development. - Embedded Systems Expert (C/C++) - STM32, Arduino, ESP32 boards and Raspberry PIs - PCB Mixed Signal and High Speed Design - FPGAs, Verilog/VHDL - Assembly Language (x86, MIPS, Arm/Thumb) - ROS Robotics, Drones, IMUs applications - Native and Cross platform BLE/IoT Mobile App development With hands-on experience in creating advanced projects like drones, robotic arms, IMU gloves and developing path planning and navigation systems utilizing depth cameras for autonomous robots, I excel at integrating cutting-edge technology to solve complex problems. My skills extend to app development for Android, iOS, and web platforms, IoT apps and Sensor Integration ensuring comprehensive solutions for diverse needs. Let's collaborate to transform your ideas into a Reality!

✅ Responds within 10 to 15 minutes ✅ Among the Top 3% of Upwork Freelancers with consistent 5-star ratings ✅ 30+ production systems shipped using ESP32, STM32, nRF52, Yocto, Zephyr RTOS, Linux Kernel, including ISO 26262 safety-critical projects 8+ years building production-grade C/C++ firmware for several Embedded Systems, IoT devices, and industrial systems. from first prototype through certification and manufacturing. ── WHO I WORK WITH ── Whether you're a startup bringing a hardware product to market, an OEM needing automotive-grade embedded software, or an IoT company scaling a connected device. I deliver clean, testable firmware that passes certification and works in the field. ── WHAT I DELIVER ── ✅ Rapid prototyping: from concept to working proof-of-concept in weeks, not months ✅ Production firmware for automotive systems: AUTOSAR (Classic & Adaptive), CAN/J1939, LIN, ISO 26262 functional safety ✅ IoT device firmware: ESP32, BLE, WiFi, MQTT, OTA updates, sensor integration, low-power design ✅ HMI/display development: Qt/QML touchscreen interfaces on embedded Linux platforms ✅ RTOS-based systems: Zephyr, FreeRTOS, bare-metal, real-time performance on ARM Cortex-M and embedded Linux ✅ Documentation & standards: SRS, SAD, ICD, MISRA-C, traceability for safety-critical projects ── CORE TECHNICAL STACK ── Languages: C, Embedded C, C++17, Python MCU/Platforms: ESP32, STM32, ARM Cortex-M, Raspberry Pi, Infineon AURIX, Nordic nRF RTOS & OS: Zephyr, FreeRTOS, Embedded Linux, QNX Protocols: CAN, J1939, LIN, UART, SPI, I2C, BLE, WiFi, MQTT Standards: AUTOSAR Classic & Adaptive, ISO 26262, MISRA-C Tools: Git, CMake, STM32CubeIDE, ESP-IDF, PlatformIO, MATLAB/Simulink, Qt/QML ── HOW I WORK ── You'll get regular progress updates, clear documentation, and no surprises. I scope honestly, flag risks early, and deliver tested, production-ready code. I'm available for overlap with US, EU, and MENA teams. ── LET'S TALK ── Send me a message with your project brief and timeline. I'll respond within a few hours with an honest assessment of whether I'm the right fit and if I'm not, I'll tell you that too.

more10 years of expertise in embedded systems and IoT. My skills encompass both software and hardware aspects of embedded systems, including: Raspberry Pi, ESP32,Yun, among others. In terms of hardware, - I have knowledge and experience in PCB prototyping and production. This includes designing and manufacturing . - I have a strong understanding of digital transformation and how it applies to various industries. On the software side, - I have proficiency in developing mobile applications for both iOS and Android via React native or thunkable. - I have a diverse range of programming skills, including Node.js, PHP, HTML, CSS, C++, nodejs, Bash. - mange servers and networks, ensuring the smooth operation and connectivity of various systems. I am eager to take on creative challenges that allow me to showcase my expertise while making a meaningful impact.